diff --git a/flutter_inappwebview_windows/windows/CMakeLists.txt b/flutter_inappwebview_windows/windows/CMakeLists.txt
index 7df66194..908110bb 100644
--- a/flutter_inappwebview_windows/windows/CMakeLists.txt
+++ b/flutter_inappwebview_windows/windows/CMakeLists.txt
@@ -64,6 +64,8 @@ list(APPEND PLUGIN_SOURCES
   "types/web_history.h"
   "types/web_history_item.cpp"
   "types/web_history_item.h"
+  "types/content_world.cpp"
+  "types/content_world.h"
   "types/user_script.cpp"
   "types/user_script.h"
   "types/plugin_script.cpp"
diff --git a/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.cpp b/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.cpp
index c64b1293..c87d05a0 100644
--- a/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.cpp
+++ b/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser.cpp
@@ -190,7 +190,7 @@ namespace flutter_inappwebview_plugin
   void InAppBrowser::didChangeTitle(const std::optional<std::string>& title) const
   {
     if (title.has_value()) {
-      SetWindowText(m_hWnd, ansi_to_wide(title.value()).c_str());
+      SetWindowText(m_hWnd, utf8_to_wide(title.value()).c_str());
     }
   }
 
diff --git a/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp b/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp
index b52d5bc0..96bd4fb8 100644
--- a/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp
+++ b/flutter_inappwebview_windows/windows/in_app_browser/in_app_browser_manager.cpp
@@ -32,7 +32,7 @@ namespace flutter_inappwebview_plugin
       auto url = get_fl_map_value<std::string>(*arguments, "url");
 
       int status = static_cast<int>(reinterpret_cast<INT_PTR>(
-        ShellExecute(nullptr, TEXT("open"), ansi_to_wide(url).c_str(),
+        ShellExecute(nullptr, TEXT("open"), utf8_to_wide(url).c_str(),
           nullptr, nullptr, SW_SHOWNORMAL)));
 
       // Anything >32 indicates success.
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp b/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp
index c0ee89fe..e494c6a8 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp
+++ b/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.cpp
@@ -133,11 +133,40 @@ namespace flutter_inappwebview_plugin
       wil::com_ptr<ICoreWebView2Settings2> webView2Settings2;
       if (succeededOrLog(webView2Settings->QueryInterface(IID_PPV_ARGS(&webView2Settings2)))) {
         if (!settings->userAgent.empty()) {
-          webView2Settings2->put_UserAgent(ansi_to_wide(settings->userAgent).c_str());
+          webView2Settings2->put_UserAgent(utf8_to_wide(settings->userAgent).c_str());
         }
       }
     }
 
+    // required to make Runtime events work
+    failedLog(webView->CallDevToolsProtocolMethod(L"Runtime.enable", L"{}", Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [this](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        failedLog(errorCode);
+        return S_OK;
+      }
+    ).Get()));
+
+    // required to make Page events work and to add User Scripts
+    failedLog(webView->CallDevToolsProtocolMethod(L"Page.enable", L"{}", Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [this](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        failedLog(errorCode);
+        return S_OK;
+      }
+    ).Get()));
+
+    failedLog(webView->CallDevToolsProtocolMethod(L"Page.getFrameTree", L"{}", Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [this](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        if (succeededOrLog(errorCode)) {
+          auto treeJson = nlohmann::json::parse(wide_to_utf8(returnObjectAsJson));
+          pageFrameId_ = treeJson["frameTree"]["frame"]["id"].get<std::string>();
+        }
+        return S_OK;
+      }
+    ).Get()));
+
     userContentController->addPluginScript(std::move(createJavaScriptBridgePluginScript()));
 
     if (params.initialUserScripts.has_value()) {
@@ -241,7 +270,7 @@ namespace flutter_inappwebview_plugin
 
           UINT64 navigationId;
           if (SUCCEEDED(args->get_NavigationId(&navigationId))) {
-            navigationActions.insert({ navigationId, navigationAction });
+            navigationActions_.insert({ navigationId, navigationAction });
           }
 
           if (callShouldOverrideUrlLoading_ && requestMethod == nullptr) {
@@ -287,17 +316,14 @@ namespace flutter_inappwebview_plugin
         {
           isLoading_ = false;
 
-          if (userContentController) {
-            evaluateJavascript(userContentController->generateWrappedCodeForDocumentEnd(), nullptr);
-          }
-          evaluateJavascript(PLATFORM_READY_JS_SOURCE, nullptr);
+          evaluateJavascript(PLATFORM_READY_JS_SOURCE, ContentWorld::page(), nullptr);
 
           std::shared_ptr<NavigationAction> navigationAction;
           UINT64 navigationId;
           if (SUCCEEDED(args->get_NavigationId(&navigationId))) {
-            navigationAction = map_at_or_null(navigationActions, navigationId);
+            navigationAction = map_at_or_null(navigationActions_, navigationId);
             if (navigationAction) {
-              navigationActions.erase(navigationId);
+              navigationActions_.erase(navigationId);
             }
           }
 
@@ -338,7 +364,7 @@ namespace flutter_inappwebview_plugin
         if (channelDelegate) {
           wil::unique_cotaskmem_string title;
           sender->get_DocumentTitle(&title);
-          channelDelegate->onTitleChanged(title.is_valid() ? wide_to_ansi(title.get()) : std::optional<std::string>{});
+          channelDelegate->onTitleChanged(title.is_valid() ? wide_to_utf8(title.get()) : std::optional<std::string>{});
         }
         return S_OK;
       }
@@ -379,7 +405,7 @@ namespace flutter_inappwebview_plugin
 
         wil::unique_cotaskmem_string json;
         if (succeededOrLog(args->get_WebMessageAsJson(&json))) {
-          auto message = nlohmann::json::parse(wide_to_ansi(json.get()));
+          auto message = nlohmann::json::parse(wide_to_utf8(json.get()));
 
           if (message.is_object() && message.contains("name") && message.at("name").is_string() && message.contains("body") && message.at("body").is_object()) {
             auto name = message.at("name").get<std::string>();
@@ -401,7 +427,7 @@ namespace flutter_inappwebview_plugin
                   evaluateJavascript("if (window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "] != null) { \
                       window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "].resolve(" + json + "); \
                       delete window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "]; \
-                    }", nullptr);
+                    }", ContentWorld::page(), nullptr);
                 };
               callback->error = [this, callHandlerID](const std::string& error_code, const std::string& error_message, const flutter::EncodableValue* error_details)
                 {
@@ -411,7 +437,7 @@ namespace flutter_inappwebview_plugin
                   evaluateJavascript("if (window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "] != null) { \
                       window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "].reject(new Error('" + replace_all_copy(errorMessage, "\'", "\\'") + "')); \
                       delete window." + JAVASCRIPT_BRIDGE_NAME + "[" + std::to_string(callHandlerID) + "]; \
-                    }", nullptr);
+                    }", ContentWorld::page(), nullptr);
                 };
               channelDelegate->onCallJsHandler(handlerName, handlerArgs, std::move(callback));
             }
@@ -421,6 +447,55 @@ namespace flutter_inappwebview_plugin
         return S_OK;
       }
     ).Get(), nullptr));
+
+    wil::com_ptr<ICoreWebView2DevToolsProtocolEventReceiver> consoleMessageReceiver;
+    if (succeededOrLog(webView->GetDevToolsProtocolEventReceiver(L"Runtime.consoleAPICalled", &consoleMessageReceiver))) {
+      failedLog(consoleMessageReceiver->add_DevToolsProtocolEventReceived(
+        Callback<ICoreWebView2DevToolsProtocolEventReceivedEventHandler>(
+          [this](
+            ICoreWebView2* sender,
+            ICoreWebView2DevToolsProtocolEventReceivedEventArgs* args) -> HRESULT
+          {
+
+            if (!channelDelegate) {
+              return S_OK;
+            }
+
+            wil::unique_cotaskmem_string json;
+            if (succeededOrLog(args->get_ParameterObjectAsJson(&json))) {
+              auto consoleMessageJson = nlohmann::json::parse(wide_to_utf8(json.get()));
+
+              auto level = consoleMessageJson.at("type").get<std::string>();
+              int64_t messageLevel = 1;
+              if (string_equals(level, "log")) {
+                messageLevel = 1;
+              }
+              else if (string_equals(level, "debug")) {
+                messageLevel = 0;
+              }
+              else if (string_equals(level, "error")) {
+                messageLevel = 3;
+              }
+              else if (string_equals(level, "info")) {
+                messageLevel = 1;
+              }
+              else if (string_equals(level, "warn")) {
+                messageLevel = 2;
+              }
+
+              auto consoleArgs = consoleMessageJson.at("args").get<std::vector<nlohmann::json>>();
+              auto message = join(functional_map(consoleArgs, [](const nlohmann::json& json) { return json.contains("value") ? json.at("value").dump() : (json.contains("description") ? json.at("description").dump() : json.dump()); }), std::string{ " " });
+              channelDelegate->onConsoleMessage(message, messageLevel);
+            }
+
+            return S_OK;
+          })
+        .Get(), nullptr));
+    }
+
+    if (userContentController) {
+      userContentController->registerEventHandlers();
+    }
   }
 
   void InAppWebView::registerSurfaceEventHandlers()
@@ -462,13 +537,13 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    std::wstring url = ansi_to_wide(urlRequest->url.value());
+    std::wstring url = utf8_to_wide(urlRequest->url.value());
 
     wil::com_ptr<ICoreWebView2Environment2> webViewEnv2;
     wil::com_ptr<ICoreWebView2_2> webView2;
     if (SUCCEEDED(webViewEnv->QueryInterface(IID_PPV_ARGS(&webViewEnv2))) && SUCCEEDED(webView->QueryInterface(IID_PPV_ARGS(&webView2)))) {
       wil::com_ptr<ICoreWebView2WebResourceRequest> webResourceRequest;
-      std::wstring method = urlRequest->method.has_value() ? ansi_to_wide(urlRequest->method.value()) : L"GET";
+      std::wstring method = urlRequest->method.has_value() ? utf8_to_wide(urlRequest->method.value()) : L"GET";
 
       wil::com_ptr<IStream> postDataStream = nullptr;
       if (urlRequest->body.has_value()) {
@@ -491,7 +566,7 @@ namespace flutter_inappwebview_plugin
           if (urlRequest->headers.has_value()) {
             auto& headers = urlRequest->headers.value();
             for (auto const& [key, val] : headers) {
-              requestHeaders->SetHeader(ansi_to_wide(key).c_str(), ansi_to_wide(val).c_str());
+              requestHeaders->SetHeader(utf8_to_wide(key).c_str(), utf8_to_wide(val).c_str());
             }
           }
         }
@@ -530,7 +605,7 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    failedLog(webView->NavigateToString(ansi_to_wide(data).c_str()));
+    failedLog(webView->NavigateToString(utf8_to_wide(data).c_str()));
   }
 
   void InAppWebView::reload() const
@@ -590,7 +665,7 @@ namespace flutter_inappwebview_plugin
             if (entryId.has_value()) {
               auto oldCallShouldOverrideUrlLoading_ = callShouldOverrideUrlLoading_;
               callShouldOverrideUrlLoading_ = false;
-              if (failedAndLog(webView->CallDevToolsProtocolMethod(L"Page.navigateToHistoryEntry", ansi_to_wide("{\"entryId\": " + std::to_string(entryId.value()) + "}").c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+              if (failedAndLog(webView->CallDevToolsProtocolMethod(L"Page.navigateToHistoryEntry", utf8_to_wide("{\"entryId\": " + std::to_string(entryId.value()) + "}").c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
                 [this](HRESULT errorCode, LPCWSTR returnObjectAsJson)
                 {
                   failedLog(errorCode);
@@ -653,7 +728,7 @@ namespace flutter_inappwebview_plugin
         }
 
         if (errorCode == S_OK) {
-          auto historyJson = nlohmann::json::parse(wide_to_ansi(returnObjectAsJson));
+          auto historyJson = nlohmann::json::parse(wide_to_utf8(returnObjectAsJson));
 
           int64_t currentIndex = historyJson.at("currentIndex").is_number_unsigned() ? historyJson.at("currentIndex").get<int64_t>() : 0;
           std::vector<nlohmann::json> entries = historyJson.at("entries").is_array() ? historyJson.at("entries").get<std::vector<nlohmann::json>>() : std::vector<nlohmann::json>{};
@@ -686,22 +761,44 @@ namespace flutter_inappwebview_plugin
     ).Get()));
   }
 
-  void InAppWebView::evaluateJavascript(const std::string& source, const std::function<void(std::string)> completionHanlder) const
+  void InAppWebView::evaluateJavascript(const std::string& source, const std::shared_ptr<ContentWorld> contentWorld, const std::function<void(std::string)> completionHandler) const
   {
-    failedLog(webView->ExecuteScript(ansi_to_wide(source).c_str(),
-      Callback<ICoreWebView2ExecuteScriptCompletedHandler>(
-        [completionHanlder = std::move(completionHanlder)](HRESULT error, PCWSTR result) -> HRESULT
-        {
-          if (error != S_OK) {
-            debugLog(error);
-          }
+    if (!webView || !userContentController) {
+      if (completionHandler) {
+        completionHandler("null");
+      }
+      return;
+    }
 
-          if (completionHanlder) {
-            completionHanlder(wide_to_ansi(result));
-          }
+    userContentController->createContentWorld(contentWorld,
+      [=](const int& contextId)
+      {
+        nlohmann::json parameters = {
+          {"expression", source}
+        };
 
-          return S_OK;
-        }).Get()));
+        if (contextId >= 0) {
+          parameters["contextId"] = contextId;
+        }
+
+        auto hr = webView->CallDevToolsProtocolMethod(L"Runtime.evaluate", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+          [this, completionHandler](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+          {
+            std::string result = "null";
+            if (succeededOrLog(errorCode)) {
+              result = wide_to_utf8(returnObjectAsJson);
+            }
+            if (completionHandler) {
+              completionHandler(result);
+            }
+            return S_OK;
+          }
+        ).Get());
+
+        if (failedAndLog(hr) && completionHandler) {
+          completionHandler("null");
+        }
+      });
   }
 
   void InAppWebView::addUserScript(const std::shared_ptr<UserScript> userScript) const
@@ -964,10 +1061,10 @@ namespace flutter_inappwebview_plugin
   return handled; \
 })(" + std::to_string(horizontal) + ", " + std::to_string(offset) + ", " + std::to_string(lastCursorPos_.x) + ", " + std::to_string(lastCursorPos_.y) + ");";
 
-    webView->ExecuteScript(ansi_to_wide(workaroundScrollJS).c_str(), Callback<ICoreWebView2ExecuteScriptCompletedHandler>(
+    webView->ExecuteScript(utf8_to_wide(workaroundScrollJS).c_str(), Callback<ICoreWebView2ExecuteScriptCompletedHandler>(
       [this, horizontal, offset](HRESULT error, PCWSTR result) -> HRESULT
       {
-        if (webViewCompositionController && (error != S_OK || wide_to_ansi(result).compare("false") == 0)) {
+        if (webViewCompositionController && (error != S_OK || wide_to_utf8(result).compare("false") == 0)) {
           // try to use native mouse wheel handler
 
           POINT point;
@@ -1057,7 +1154,7 @@ namespace flutter_inappwebview_plugin
     if (webViewController) {
       webViewController->Close();
     }
-    navigationActions.clear();
+    navigationActions_.clear();
     inAppBrowser = nullptr;
     plugin = nullptr;
   }
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h b/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h
index ec87f6fa..c1645cbb 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h
+++ b/flutter_inappwebview_windows/windows/in_app_webview/in_app_webview.h
@@ -9,6 +9,7 @@
 #include <winrt/base.h>
 
 #include "../flutter_inappwebview_windows_plugin.h"
+#include "../types/content_world.h"
 #include "../types/navigation_action.h"
 #include "../types/url_request.h"
 #include "../types/web_history.h"
@@ -87,7 +88,6 @@ namespace flutter_inappwebview_plugin
     wil::com_ptr<ICoreWebView2CompositionController> webViewCompositionController;
     wil::com_ptr<ICoreWebView2> webView;
     std::unique_ptr<WebViewChannelDelegate> channelDelegate;
-    std::map<UINT64, std::shared_ptr<NavigationAction>> navigationActions = {};
     const std::shared_ptr<InAppWebViewSettings> settings;
     InAppBrowser* inAppBrowser = nullptr;
     std::unique_ptr<UserContentController> userContentController;
@@ -148,13 +148,18 @@ namespace flutter_inappwebview_plugin
       return isLoading_;
     }
     void stopLoading() const;
-    void evaluateJavascript(const std::string& source, const std::function<void(std::string)> completionHanlder) const;
+    void evaluateJavascript(const std::string& source, const std::shared_ptr<ContentWorld> contentWorld, const std::function<void(std::string)> completionHandler) const;
     void getCopyBackForwardList(const std::function<void(std::unique_ptr<WebHistory>)> completionHandler) const;
     void addUserScript(const std::shared_ptr<UserScript> userScript) const;
     void removeUserScript(const int64_t index, const std::shared_ptr<UserScript> userScript) const;
     void removeUserScriptsByGroupName(const std::string& groupName) const;
     void removeAllUserScripts() const;
 
+    std::string pageFrameId() const
+    {
+      return pageFrameId_;
+    }
+
     static bool isSslError(const COREWEBVIEW2_WEB_ERROR_STATUS& webErrorStatus);
   private:
     // custom_platform_view
@@ -166,11 +171,13 @@ namespace flutter_inappwebview_plugin
     VirtualKeyState virtualKeys_;
 
     bool callShouldOverrideUrlLoading_ = true;
+    std::map<UINT64, std::shared_ptr<NavigationAction>> navigationActions_ = {};
     std::shared_ptr<NavigationAction> lastNavigationAction_;
     bool isLoading_ = false;
+    std::string pageFrameId_;
 
-    void InAppWebView::registerEventHandlers();
-    void InAppWebView::registerSurfaceEventHandlers();
+    void registerEventHandlers();
+    void registerSurfaceEventHandlers();
   };
 }
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_IN_APP_WEBVIEW_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.cpp b/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.cpp
index 9f51ed82..9cbe2761 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.cpp
+++ b/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.cpp
@@ -1,3 +1,4 @@
+#include <nlohmann/json.hpp>
 #include <wil/wrl.h>
 
 #include "../utils/log.h"
@@ -14,6 +15,67 @@ namespace flutter_inappwebview_plugin
     : webView_(webView)
   {}
 
+  void UserContentController::registerEventHandlers()
+  {
+    if (!webView_ || !(webView_->webView)) {
+      return;
+    }
+
+    wil::com_ptr<ICoreWebView2DevToolsProtocolEventReceiver> executionContextCreated;
+    if (succeededOrLog(webView_->webView->GetDevToolsProtocolEventReceiver(L"Runtime.executionContextCreated", &executionContextCreated))) {
+      auto hr = executionContextCreated->add_DevToolsProtocolEventReceived(
+        Callback<ICoreWebView2DevToolsProtocolEventReceivedEventHandler>(
+          [this](
+            ICoreWebView2* sender,
+            ICoreWebView2DevToolsProtocolEventReceivedEventArgs* args) -> HRESULT
+          {
+            wil::unique_cotaskmem_string json;
+            if (succeededOrLog(args->get_ParameterObjectAsJson(&json))) {
+              nlohmann::json context = nlohmann::json::parse(wide_to_utf8(json.get()))["context"];
+              auto id = context["id"].get<int>();
+              auto name = context["name"].get<std::string>();
+              nlohmann::json auxData = context["auxData"];
+              auto isDefault = auxData["isDefault"].get<bool>();
+              auto frameId = auxData["frameId"].get<std::string>();
+              if (string_equals(webView_->pageFrameId(), frameId)) {
+                if (isDefault) {
+                  contentWorlds_.insert_or_assign(ContentWorld::page()->name, id);
+                }
+                else {
+                  contentWorlds_.insert_or_assign(name, id);
+                  addPluginScriptsIfRequired(std::make_shared<ContentWorld>(name));
+                }
+              }
+            }
+
+            return S_OK;
+          })
+        .Get(), nullptr);
+
+      failedLog(hr);
+    }
+
+    /*
+    wil::com_ptr<ICoreWebView2DevToolsProtocolEventReceiver> executionContextDestroyed;
+    if (succeededOrLog(webView_->webView->GetDevToolsProtocolEventReceiver(L"Runtime.executionContextDestroyed ", &executionContextDestroyed))) {
+      failedLog(executionContextDestroyed->add_DevToolsProtocolEventReceived(
+        Callback<ICoreWebView2DevToolsProtocolEventReceivedEventHandler>(
+          [this](
+            ICoreWebView2* sender,
+            ICoreWebView2DevToolsProtocolEventReceivedEventArgs* args) -> HRESULT
+          {
+            wil::unique_cotaskmem_string json;
+            if (succeededOrLog(args->get_ParameterObjectAsJson(&json))) {
+              debugLog("executionContextDestroyed: " + wide_to_utf8(json.get()));
+            }
+
+            return S_OK;
+          })
+        .Get(), nullptr));
+    }
+    */
+  }
+
   std::vector<std::shared_ptr<UserScript>> UserContentController::getUserOnlyScriptsAt(const UserScriptInjectionTime& injectionTime) const
   {
     return userOnlyScripts_.at(injectionTime);
@@ -25,18 +87,8 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    if (userScript->injectionTime == UserScriptInjectionTime::atDocumentStart && webView_) {
-      failedLog(webView_->webView->AddScriptToExecuteOnDocumentCreated(ansi_to_wide(userScript->source).c_str(),
-        Callback<ICoreWebView2AddScriptToExecuteOnDocumentCreatedCompletedHandler>(
-          [userScript](HRESULT error, PCWSTR id) -> HRESULT
-          {
-            if (succeededOrLog(error)) {
-              userScript->id = id;
-            }
-            return S_OK;
-          }).Get()));
-    }
-
+    addPluginScriptsIfRequired(userScript->contentWorld);
+    addScriptToWebView(userScript, nullptr);
     userOnlyScripts_.at(userScript->injectionTime).push_back(std::move(userScript));
   }
 
@@ -54,7 +106,7 @@ namespace flutter_inappwebview_plugin
     }
 
     if (webView_) {
-      failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+      removeScriptFromWebView(userScript, nullptr);
     }
 
     vector_remove_erase(userOnlyScripts_.at(userScript->injectionTime), std::move(userScript));
@@ -70,9 +122,7 @@ namespace flutter_inappwebview_plugin
 
     auto& userScript = vec.at(index);
     if (userScript) {
-      if (webView_) {
-        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
-      }
+      removeScriptFromWebView(userScript, nullptr);
       vec.erase(vec.begin() + index);
     }
   }
@@ -84,10 +134,10 @@ namespace flutter_inappwebview_plugin
 
     if (webView_) {
       for (auto& userScript : userScriptsAtStart) {
-        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+        removeScriptFromWebView(userScript, nullptr);
       }
       for (auto& userScript : userScriptsAtEnd) {
-        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(userScript->id.c_str()));
+        removeScriptFromWebView(userScript, nullptr);
       }
     }
 
@@ -139,18 +189,7 @@ namespace flutter_inappwebview_plugin
       return;
     }
 
-    if (pluginScript->injectionTime == UserScriptInjectionTime::atDocumentStart && webView_) {
-      failedLog(webView_->webView->AddScriptToExecuteOnDocumentCreated(ansi_to_wide(pluginScript->source).c_str(),
-        Callback<ICoreWebView2AddScriptToExecuteOnDocumentCreatedCompletedHandler>(
-          [pluginScript](HRESULT error, PCWSTR id) -> HRESULT
-          {
-            if (succeededOrLog(error)) {
-              pluginScript->id = id;
-            }
-            return S_OK;
-          }).Get()));
-    }
-
+    addScriptToWebView(pluginScript, nullptr);
     pluginScripts_.at(pluginScript->injectionTime).push_back(std::move(pluginScript));
   }
 
@@ -168,7 +207,7 @@ namespace flutter_inappwebview_plugin
     }
 
     if (webView_) {
-      failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+      removeScriptFromWebView(pluginScript, nullptr);
     }
 
     vector_remove_erase(pluginScripts_.at(pluginScript->injectionTime), std::move(pluginScript));
@@ -181,10 +220,10 @@ namespace flutter_inappwebview_plugin
 
     if (webView_) {
       for (auto& pluginScript : pluginScriptsAtStart) {
-        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+        removeScriptFromWebView(pluginScript, nullptr);
       }
       for (auto& pluginScript : pluginScriptsAtEnd) {
-        failedLog(webView_->webView->RemoveScriptToExecuteOnDocumentCreated(pluginScript->id.c_str()));
+        removeScriptFromWebView(pluginScript, nullptr);
       }
     }
 
@@ -198,7 +237,18 @@ namespace flutter_inappwebview_plugin
       return false;
     }
 
-    return vector_contains(pluginScripts_.at(pluginScript->injectionTime), std::move(pluginScript));
+    auto injectionTime = pluginScript->injectionTime;
+    return vector_contains(pluginScripts_.at(injectionTime), std::move(pluginScript));
+  }
+
+
+  bool UserContentController::containsPluginScript(std::shared_ptr<PluginScript> pluginScript, const std::shared_ptr<ContentWorld> contentWorld) const
+  {
+    if (!pluginScript || !map_contains(pluginScriptsInContentWorlds_, contentWorld->name)) {
+      return false;
+    }
+
+    return vector_contains(pluginScriptsInContentWorlds_.at(contentWorld->name), std::move(pluginScript));
   }
 
   bool UserContentController::containsPluginScriptByGroupName(const std::string& groupName) const
@@ -225,31 +275,150 @@ namespace flutter_inappwebview_plugin
     }
   }
 
-  std::string UserContentController::generatePluginScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const
+
+  std::vector<std::shared_ptr<PluginScript>> UserContentController::getPluginScriptsRequiredInAllContentWorlds() const
   {
-    std::string code;
-    std::vector<std::shared_ptr<PluginScript>> pluginScripts = pluginScripts_.at(injectionTime);
-    for (auto& pluginScript : pluginScripts) {
-      code += ";" + pluginScript->source;
+    std::vector<std::shared_ptr<PluginScript>> res;
+
+    std::vector<std::shared_ptr<PluginScript>> pluginScriptsAtStart = pluginScripts_.at(UserScriptInjectionTime::atDocumentStart);
+    std::vector<std::shared_ptr<PluginScript>> pluginScriptsAtEnd = pluginScripts_.at(UserScriptInjectionTime::atDocumentEnd);
+
+    for (auto& pluginScript : pluginScriptsAtStart) {
+      if (!pluginScript->contentWorld && pluginScript->isRequiredInAllContentWorlds()) {
+        res.push_back(pluginScript);
+      }
     }
-    return code;
+
+    for (auto& pluginScript : pluginScriptsAtEnd) {
+      if (!pluginScript->contentWorld && pluginScript->isRequiredInAllContentWorlds()) {
+        res.push_back(pluginScript);
+      }
+    }
+
+    return res;
   }
 
-  std::string UserContentController::generateUserOnlyScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const
+  void UserContentController::createContentWorld(const std::shared_ptr<ContentWorld> contentWorld, const std::function<void(int)> completionHandler)
   {
-    std::string code;
-    std::vector<std::shared_ptr<UserScript>> userScripts = userOnlyScripts_.at(injectionTime);
-    for (auto& userScript : userScripts) {
-      code += ";" + userScript->source;
+    if (!webView_ || !(webView_->webView) || ContentWorld::isPage(contentWorld)) {
+      if (completionHandler) {
+        completionHandler(-1);
+      }
+      return;
+    }
+
+    auto& worldName = contentWorld->name;
+    if (!map_contains(contentWorlds_, worldName)) {
+      nlohmann::json parameters = {
+        {"frameId", webView_->pageFrameId()},
+        {"worldName", worldName}
+      };
+      auto hr = webView_->webView->CallDevToolsProtocolMethod(L"Page.createIsolatedWorld", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+        [this, completionHandler, worldName](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+        {
+          if (succeededOrLog(errorCode) && completionHandler) {
+            auto id = nlohmann::json::parse(wide_to_utf8(returnObjectAsJson))["executionContextId"].get<int>();
+            addPluginScriptsIfRequired(std::make_shared<ContentWorld>(worldName));
+            completionHandler(id);
+          }
+          return S_OK;
+        }
+      ).Get());
+      if (failedAndLog(hr) && completionHandler) {
+        completionHandler(-1);
+      }
+    }
+    else if (completionHandler) {
+      completionHandler(contentWorlds_.at(worldName));
     }
-    return code;
   }
 
-  std::string UserContentController::generateWrappedCodeForDocumentEnd() const
+  void UserContentController::addScriptToWebView(std::shared_ptr<UserScript> userScript, const std::function<void(std::string)> completionHandler) const
   {
-    std::string code = generatePluginScriptsCodeAt(UserScriptInjectionTime::atDocumentEnd);
-    code += generateUserOnlyScriptsCodeAt(UserScriptInjectionTime::atDocumentEnd);
-    return replace_all_copy(USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE, VAR_PLACEHOLDER_VALUE, code);
+    if (!webView_ || !(webView_->webView)) {
+      if (completionHandler) {
+        completionHandler(userScript->id);
+      }
+    }
+
+    std::string source = userScript->source;
+    if (userScript->injectionTime == UserScriptInjectionTime::atDocumentEnd) {
+      source = replace_all_copy(USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE, VAR_PLACEHOLDER_VALUE, source);
+      std::ostringstream address;
+      address << std::addressof(userScript);
+      replace_all(source, VAR_PLACEHOLDER_MEMORY_ADDRESS_VALUE, address.str());
+    }
+
+    nlohmann::json parameters = {
+      {"source", source}
+    };
+
+    if (userScript->contentWorld && !ContentWorld::isPage(userScript->contentWorld)) {
+      parameters["worldName"] = userScript->contentWorld->name;
+    }
+
+    auto hr = webView_->webView->CallDevToolsProtocolMethod(L"Page.addScriptToEvaluateOnNewDocument", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [userScript, completionHandler](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        if (succeededOrLog(errorCode)) {
+          nlohmann::json json = nlohmann::json::parse(wide_to_utf8(returnObjectAsJson));
+          userScript->id = json["identifier"].get<std::string>();
+        }
+        if (completionHandler) {
+          completionHandler(userScript->id);
+        }
+        return S_OK;
+      }
+    ).Get());
+
+    if (failedAndLog(hr) && completionHandler) {
+      completionHandler(userScript->id);
+    }
+  }
+
+  void UserContentController::removeScriptFromWebView(std::shared_ptr<UserScript> userScript, const std::function<void()> completionHandler) const
+  {
+    if (!webView_ || !(webView_->webView)) {
+      if (completionHandler) {
+        completionHandler();
+      }
+      return;
+    }
+
+    nlohmann::json parameters = {
+      {"identifier", userScript->id}
+    };
+
+    auto hr = webView_->webView->CallDevToolsProtocolMethod(L"Page.removeScriptToEvaluateOnNewDocument", utf8_to_wide(parameters.dump()).c_str(), Callback<ICoreWebView2CallDevToolsProtocolMethodCompletedHandler>(
+      [userScript, completionHandler](HRESULT errorCode, LPCWSTR returnObjectAsJson)
+      {
+        failedLog(errorCode);
+        if (completionHandler) {
+          completionHandler();
+        }
+        return S_OK;
+      }
+    ).Get());
+
+    if (failedAndLog(hr) && completionHandler) {
+      completionHandler();
+    }
+  }
+
+  void UserContentController::addPluginScriptsIfRequired(const std::shared_ptr<ContentWorld> contentWorld)
+  {
+    if (contentWorld && !ContentWorld::isPage(contentWorld)) {
+      std::vector<std::shared_ptr<PluginScript>> pluginScriptsRequiredInAllContentWorlds = getPluginScriptsRequiredInAllContentWorlds();
+      for (auto& pluginScript : pluginScriptsRequiredInAllContentWorlds) {
+        if (!containsPluginScript(pluginScript, contentWorld)) {
+          if (!map_contains(pluginScriptsInContentWorlds_, contentWorld->name)) {
+            pluginScriptsInContentWorlds_.insert({ contentWorld->name, {} });
+          }
+          pluginScriptsInContentWorlds_.at(contentWorld->name).push_back(pluginScript);
+          addPluginScript(pluginScript->copyAndSet(contentWorld));
+        }
+      }
+    }
   }
 
   UserContentController::~UserContentController()
@@ -257,6 +426,8 @@ namespace flutter_inappwebview_plugin
     debugLog("dealloc UserContentController");
     removeAllUserOnlyScripts();
     removeAllPluginScripts();
+    contentWorlds_.clear();
+    pluginScriptsInContentWorlds_.clear();
     webView_ = nullptr;
   }
 }
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.h b/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.h
index c051544a..a6592913 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.h
+++ b/flutter_inappwebview_windows/windows/in_app_webview/user_content_controller.h
@@ -1,11 +1,13 @@
 #ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_USER_CONTENT_CONTROLLER_H_
 #define FLUTTER_INAPPWEBVIEW_PLUGIN_USER_CONTENT_CONTROLLER_H_
 
+#include <functional>
 #include <map>
 #include <vector>
 
 #include "../plugin_scripts_js/javascript_bridge_js.h"
 #include "../plugin_scripts_js/plugin_scripts_util.h"
+#include "../types/content_world.h"
 #include "../types/plugin_script.h"
 #include "../types/user_script.h"
 
@@ -13,11 +15,12 @@ namespace flutter_inappwebview_plugin
 {
   class InAppWebView;
 
-  const std::string USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE =
-    "if (window." + JAVASCRIPT_BRIDGE_NAME + " != null && (window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded == null || !window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded)) { \
-      window." + JAVASCRIPT_BRIDGE_NAME + "._userScriptsAtDocumentEndLoaded = true; \
+  const std::string USER_SCRIPTS_AT_DOCUMENT_END_WRAPPER_JS_SOURCE = "window.addEventListener('load', () => { \
+    if (window." + JAVASCRIPT_BRIDGE_NAME + " != null && (window." + JAVASCRIPT_BRIDGE_NAME + "._userScript" + VAR_PLACEHOLDER_MEMORY_ADDRESS_VALUE + "AtDocumentEndLoaded == null || !window." + JAVASCRIPT_BRIDGE_NAME + "._userScript" + VAR_PLACEHOLDER_MEMORY_ADDRESS_VALUE + "AtDocumentEndLoaded)) { \
+      window." + JAVASCRIPT_BRIDGE_NAME + "._userScript" + VAR_PLACEHOLDER_MEMORY_ADDRESS_VALUE + "AtDocumentEndLoaded = true; \
       " + VAR_PLACEHOLDER_VALUE + " \
-    }";
+    } \
+  });";
 
   class UserContentController
   {
@@ -34,20 +37,28 @@ namespace flutter_inappwebview_plugin
     bool containsUserOnlyScript(std::shared_ptr<UserScript> userScript) const;
     bool containsUserOnlyScriptByGroupName(const std::string& groupName) const;
     void removeUserOnlyScriptsByGroupName(const std::string& groupName);
+
     std::vector<std::shared_ptr<PluginScript>> getPluginScriptsAt(const UserScriptInjectionTime& injectionTime) const;
     void addPluginScript(std::shared_ptr<PluginScript> pluginScript);
     void addPluginScripts(std::vector<std::shared_ptr<PluginScript>> pluginScripts);
     void removePluginScript(std::shared_ptr<PluginScript> pluginScript);
     void removeAllPluginScripts();
     bool containsPluginScript(std::shared_ptr<PluginScript> pluginScript) const;
+    bool containsPluginScript(std::shared_ptr<PluginScript> pluginScript, const std::shared_ptr<ContentWorld> contentWorld) const;
     bool containsPluginScriptByGroupName(const std::string& groupName) const;
     void removePluginScriptsByGroupName(const std::string& groupName);
-    std::string generatePluginScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const;
-    std::string generateUserOnlyScriptsCodeAt(const UserScriptInjectionTime& injectionTime) const;
-    std::string generateWrappedCodeForDocumentEnd() const;
+    std::vector<std::shared_ptr<PluginScript>> getPluginScriptsRequiredInAllContentWorlds() const;
+
+    void registerEventHandlers();
+    void createContentWorld(const std::shared_ptr<ContentWorld> contentWorld, const std::function<void(int)> completionHandler);
   private:
     InAppWebView* webView_;
 
+    // used to track Content World names -> Execution Context ID
+    std::map<std::string, int> contentWorlds_;
+    // used only to track plugin script to inject inside new Content Worlds
+    std::map<std::string, std::vector<std::shared_ptr<PluginScript>>> pluginScriptsInContentWorlds_;
+
     std::map<UserScriptInjectionTime, std::vector<std::shared_ptr<PluginScript>>> pluginScripts_ = {
       {UserScriptInjectionTime::atDocumentStart, {}},
       {UserScriptInjectionTime::atDocumentEnd, {}}
@@ -57,6 +68,11 @@ namespace flutter_inappwebview_plugin
       {UserScriptInjectionTime::atDocumentStart, {}},
       {UserScriptInjectionTime::atDocumentEnd, {}}
     };
+
+    void addScriptToWebView(std::shared_ptr<UserScript> userScript, const std::function<void(std::string)> completionHandler) const;
+    void removeScriptFromWebView(std::shared_ptr<UserScript> userScript, const std::function<void()> completionHandler) const;
+
+    void addPluginScriptsIfRequired(const std::shared_ptr<ContentWorld> contentWorld);
   };
 }
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_USER_CONTENT_CONTROLLER_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp b/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp
index e1884e1f..f7ace600 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp
+++ b/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.cpp
@@ -1,5 +1,6 @@
 #include "../in_app_browser/in_app_browser.h"
 #include "../types/base_callback_result.h"
+#include "../types/content_world.h"
 #include "../utils/flutter.h"
 #include "../utils/log.h"
 #include "../utils/strconv.h"
@@ -112,7 +113,9 @@ namespace flutter_inappwebview_plugin
       auto result_ = std::shared_ptr<flutter::MethodResult<flutter::EncodableValue>>(std::move(result));
 
       auto source = get_fl_map_value<std::string>(arguments, "source");
-      webView->evaluateJavascript(source, [result_ = std::move(result_)](const std::string& value)
+      auto contentWorldMap = get_optional_fl_map_value<flutter::EncodableMap>(arguments, "contentWorld");
+      std::shared_ptr<ContentWorld> contentWorld = contentWorldMap.has_value() ? std::make_shared<ContentWorld>(contentWorldMap.value()) : ContentWorld::page();
+      webView->evaluateJavascript(source, std::move(contentWorld), [result_ = std::move(result_)](const std::string& value)
         {
           result_->Success(value);
         });
@@ -130,7 +133,7 @@ namespace flutter_inappwebview_plugin
       result->Success(true);
     }
     else if (string_equals(methodName, "removeUserScript")) {
-      auto index = get_fl_map_value<int64_t>(arguments, "index");
+      auto index = get_fl_map_value<int>(arguments, "index");
       auto userScript = std::make_unique<UserScript>(get_fl_map_value<flutter::EncodableMap>(arguments, "userScript"));
       webView->removeUserScript(index, std::move(userScript));
       result->Success(true);
@@ -264,6 +267,19 @@ namespace flutter_inappwebview_plugin
     channel->InvokeMethod("onCallJsHandler", std::move(arguments), std::move(callback));
   }
 
+  void WebViewChannelDelegate::onConsoleMessage(const std::string& message, const int64_t& messageLevel) const
+  {
+    if (!channel) {
+      return;
+    }
+
+    auto arguments = std::make_unique<flutter::EncodableValue>(flutter::EncodableMap{
+      {"message", message},
+      {"messageLevel", messageLevel}
+      });
+    channel->InvokeMethod("onConsoleMessage", std::move(arguments));
+  }
+
   WebViewChannelDelegate::~WebViewChannelDelegate()
   {
     debugLog("dealloc WebViewChannelDelegate");
diff --git a/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.h b/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.h
index f3141b4e..7774b375 100644
--- a/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.h
+++ b/flutter_inappwebview_windows/windows/in_app_webview/webview_channel_delegate.h
@@ -50,6 +50,7 @@ namespace flutter_inappwebview_plugin
     void onTitleChanged(const std::optional<std::string>& title) const;
     void onUpdateVisitedHistory(const std::optional<std::string>& url, const std::optional<bool>& isReload) const;
     void onCallJsHandler(const std::string& handlerName, const std::string& args, std::unique_ptr<CallJsHandlerCallback> callback) const;
+    void onConsoleMessage(const std::string& message, const int64_t& messageLevel) const;
   };
 }
 
diff --git a/flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.cpp b/flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.cpp
index a87baaf9..dcb743bf 100644
--- a/flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.cpp
+++ b/flutter_inappwebview_windows/windows/plugin_scripts_js/javascript_bridge_js.cpp
@@ -11,7 +11,9 @@ namespace flutter_inappwebview_plugin
       JAVASCRIPT_BRIDGE_JS_PLUGIN_SCRIPT_GROUP_NAME,
       JAVASCRIPT_BRIDGE_JS_SOURCE,
       UserScriptInjectionTime::atDocumentStart,
-      allowedOriginRules
+      allowedOriginRules,
+      nullptr,
+      true
     );
   }
 }
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/plugin_scripts_js/plugin_scripts_util.h b/flutter_inappwebview_windows/windows/plugin_scripts_js/plugin_scripts_util.h
index 0c29cde5..1492989e 100644
--- a/flutter_inappwebview_windows/windows/plugin_scripts_js/plugin_scripts_util.h
+++ b/flutter_inappwebview_windows/windows/plugin_scripts_js/plugin_scripts_util.h
@@ -5,7 +5,8 @@
 
 namespace flutter_inappwebview_plugin
 {
-    const std::string VAR_PLACEHOLDER_VALUE = "$IN_APP_WEBVIEW_PLACEHOLDER_VALUE";
+  const std::string VAR_PLACEHOLDER_VALUE = "$IN_APP_WEBVIEW_PLACEHOLDER_VALUE";
+  const std::string VAR_PLACEHOLDER_MEMORY_ADDRESS_VALUE = "$IN_APP_WEBVIEW_PLACEHOLDER_MEMORY_ADDRESS_VALUE";
 }
 
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_PLUGIN_SCRIPTS_UTIL_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/types/content_world.cpp b/flutter_inappwebview_windows/windows/types/content_world.cpp
new file mode 100644
index 00000000..a95e773c
--- /dev/null
+++ b/flutter_inappwebview_windows/windows/types/content_world.cpp
@@ -0,0 +1,60 @@
+#include "content_world.h"
+
+namespace flutter_inappwebview_plugin
+{
+  namespace {
+    const std::shared_ptr<ContentWorld> ContentWorldPage = std::make_shared<ContentWorld>("page");
+    const std::shared_ptr<ContentWorld> ContentWorldDefaultClient = std::make_shared<ContentWorld>("defaultClient");
+  }
+
+  ContentWorld::ContentWorld(const std::string& name)
+    : name(name)
+  {}
+
+  ContentWorld::ContentWorld(const flutter::EncodableMap& map)
+    : name(get_fl_map_value<std::string>(map, "name"))
+  {}
+
+  bool ContentWorld::isSame(const ContentWorld& contentWorld) const
+  {
+    return name == contentWorld.name;
+  }
+
+  bool ContentWorld::isSame(const std::shared_ptr<ContentWorld> contentWorld) const
+  {
+    return contentWorld && name == contentWorld->name;
+  }
+
+  const std::shared_ptr<ContentWorld> ContentWorld::page()
+  {
+    return ContentWorldPage;
+  }
+
+  const std::shared_ptr<ContentWorld> ContentWorld::defaultClient()
+  {
+    return ContentWorldDefaultClient;
+  }
+
+  bool ContentWorld::isPage(const ContentWorld& contentWorld)
+  {
+    return contentWorld.isSame(*ContentWorld::page());
+  }
+
+  bool ContentWorld::isPage(const std::shared_ptr<ContentWorld> contentWorld)
+  {
+    return ContentWorld::page()->isSame(contentWorld);
+  }
+
+  bool ContentWorld::isDefaultClient(const ContentWorld& contentWorld)
+  {
+    return contentWorld.isSame(*ContentWorld::defaultClient());
+  }
+
+  bool ContentWorld::isDefaultClient(const std::shared_ptr<ContentWorld> contentWorld)
+  {
+    return ContentWorld::defaultClient()->isSame(contentWorld);
+  }
+
+  ContentWorld::~ContentWorld()
+  {}
+}
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/types/content_world.h b/flutter_inappwebview_windows/windows/types/content_world.h
new file mode 100644
index 00000000..46622289
--- /dev/null
+++ b/flutter_inappwebview_windows/windows/types/content_world.h
@@ -0,0 +1,33 @@
+#ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_CONTENT_WORLD_H_
+#define FLUTTER_INAPPWEBVIEW_PLUGIN_CONTENT_WORLD_H_
+
+#include <flutter/standard_method_codec.h>
+#include <string>
+
+#include "../utils/flutter.h"
+
+namespace flutter_inappwebview_plugin
+{
+  class ContentWorld
+  {
+  public:
+
+    const std::string name;
+
+    ContentWorld(const std::string& name);
+    ContentWorld(const flutter::EncodableMap& map);
+    ~ContentWorld();
+
+    bool isSame(const ContentWorld& contentWorld) const;
+    bool isSame(const std::shared_ptr<ContentWorld> contentWorld) const;
+
+    const static std::shared_ptr<ContentWorld> page();
+    const static std::shared_ptr<ContentWorld> defaultClient();
+
+    static bool isPage(const ContentWorld& contentWorld);
+    static bool isPage(const std::shared_ptr<ContentWorld> contentWorld);
+    static bool isDefaultClient(const ContentWorld& contentWorld);
+    static bool isDefaultClient(const std::shared_ptr<ContentWorld> contentWorld);
+  };
+}
+#endif //FLUTTER_INAPPWEBVIEW_PLUGIN_CONTENT_WORLD_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/types/plugin_script.cpp b/flutter_inappwebview_windows/windows/types/plugin_script.cpp
index d9f9c73a..cc37467a 100644
--- a/flutter_inappwebview_windows/windows/types/plugin_script.cpp
+++ b/flutter_inappwebview_windows/windows/types/plugin_script.cpp
@@ -6,9 +6,25 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::string>& groupName,
     const std::string& source,
     const UserScriptInjectionTime& injectionTime,
-    const std::vector<std::string>& allowedOriginRules
-  ) : UserScript(groupName, source, injectionTime, allowedOriginRules)
+    const std::vector<std::string>& allowedOriginRules,
+    std::shared_ptr<ContentWorld> contentWorld,
+    const bool& requiredInAllContentWorlds
+  ) : UserScript(groupName, source, injectionTime, allowedOriginRules, std::move(contentWorld)),
+    requiredInAllContentWorlds_(requiredInAllContentWorlds)
   {}
 
+
+  std::shared_ptr<PluginScript> PluginScript::copyAndSet(const std::shared_ptr<ContentWorld> cw) const
+  {
+    return std::make_unique<PluginScript>(
+      this->groupName,
+      this->source,
+      this->injectionTime,
+      this->allowedOriginRules,
+      cw,
+      this->requiredInAllContentWorlds_
+    );
+  }
+
   PluginScript::~PluginScript() {}
 }
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/types/plugin_script.h b/flutter_inappwebview_windows/windows/types/plugin_script.h
index 1e633c88..e2fae03f 100644
--- a/flutter_inappwebview_windows/windows/types/plugin_script.h
+++ b/flutter_inappwebview_windows/windows/types/plugin_script.h
@@ -13,9 +13,21 @@ namespace flutter_inappwebview_plugin
       const std::optional<std::string>& groupName,
       const std::string& source,
       const UserScriptInjectionTime& injectionTime,
-      const std::vector<std::string>& allowedOriginRules
+      const std::vector<std::string>& allowedOriginRules,
+      std::shared_ptr<ContentWorld> contentWorld,
+      const bool& requiredInAllContentWorlds
     );
     ~PluginScript();
+
+    bool isRequiredInAllContentWorlds() const
+    {
+      return requiredInAllContentWorlds_;
+    }
+
+    std::shared_ptr<PluginScript> copyAndSet(const std::shared_ptr<ContentWorld> cw) const;
+
+  private:
+    bool requiredInAllContentWorlds_;
   };
 }
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_PLUGIN_SCRIPT_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/types/user_script.cpp b/flutter_inappwebview_windows/windows/types/user_script.cpp
index 4befa0f4..6a783fe0 100644
--- a/flutter_inappwebview_windows/windows/types/user_script.cpp
+++ b/flutter_inappwebview_windows/windows/types/user_script.cpp
@@ -7,15 +7,17 @@ namespace flutter_inappwebview_plugin
     const std::optional<std::string>& groupName,
     const std::string& source,
     const UserScriptInjectionTime& injectionTime,
-    const std::vector<std::string>& allowedOriginRules
-  ) : groupName(groupName), source(source), injectionTime(injectionTime), allowedOriginRules(allowedOriginRules)
+    const std::vector<std::string>& allowedOriginRules,
+    std::shared_ptr<ContentWorld> contentWorld
+  ) : groupName(groupName), source(source), injectionTime(injectionTime), allowedOriginRules(allowedOriginRules), contentWorld(std::move(contentWorld))
   {}
 
   UserScript::UserScript(const flutter::EncodableMap& map)
     : groupName(get_optional_fl_map_value<std::string>(map, "groupName")),
     source(get_fl_map_value<std::string>(map, "source")),
     injectionTime(static_cast<UserScriptInjectionTime>(get_fl_map_value<int>(map, "injectionTime"))),
-    allowedOriginRules(functional_map(get_fl_map_value<flutter::EncodableList>(map, "allowedOriginRules"), [](const flutter::EncodableValue& m) { return std::get<std::string>(m); }))
+    allowedOriginRules(functional_map(get_fl_map_value<flutter::EncodableList>(map, "allowedOriginRules"), [](const flutter::EncodableValue& m) { return std::get<std::string>(m); })),
+    contentWorld(std::make_shared<ContentWorld>(get_fl_map_value<flutter::EncodableMap>(map, "contentWorld")))
   {}
 
   UserScript::~UserScript()
diff --git a/flutter_inappwebview_windows/windows/types/user_script.h b/flutter_inappwebview_windows/windows/types/user_script.h
index 4c742cb8..473661f0 100644
--- a/flutter_inappwebview_windows/windows/types/user_script.h
+++ b/flutter_inappwebview_windows/windows/types/user_script.h
@@ -7,6 +7,7 @@
 #include <vector>
 
 #include "../utils/flutter.h"
+#include "content_world.h"
 
 namespace flutter_inappwebview_plugin
 {
@@ -18,17 +19,19 @@ namespace flutter_inappwebview_plugin
   class UserScript
   {
   public:
-    std::wstring id;
+    std::string id;
     const std::optional<std::string> groupName;
     const std::string source;
     const UserScriptInjectionTime injectionTime;
     const std::vector<std::string> allowedOriginRules;
+    const std::shared_ptr<ContentWorld> contentWorld;
 
     UserScript(
       const std::optional<std::string>& groupName,
       const std::string& source,
       const UserScriptInjectionTime& injectionTime,
-      const std::vector<std::string>& allowedOriginRules
+      const std::vector<std::string>& allowedOriginRules,
+      std::shared_ptr<ContentWorld> contentWorld
     );
     UserScript(const flutter::EncodableMap& map);
     ~UserScript();
diff --git a/flutter_inappwebview_windows/windows/utils/log.h b/flutter_inappwebview_windows/windows/utils/log.h
index e87cdd0c..d1eb3a36 100644
--- a/flutter_inappwebview_windows/windows/utils/log.h
+++ b/flutter_inappwebview_windows/windows/utils/log.h
@@ -7,82 +7,96 @@
 #include <type_traits>
 
 #include "strconv.h"
+#include "string.h"
 
 namespace flutter_inappwebview_plugin
 {
   template <typename T>
-  static inline void debugLog(const std::basic_string<T>& msg, const bool& isError = false)
+  static inline void debugLog(const std::basic_string<T>& msg, const bool& isError = false, const std::string& filename = "", const int& line = 0)
   {
 #ifndef NDEBUG
+    std::basic_string<T> debugMsg = msg;
+    if (!filename.empty() && line > 0) {
+      auto filenameSplit = split(filename, std::string{ "\\flutter_inappwebview_windows\\" });
+      std::string reduceFilenamePath = filenameSplit.size() > 0 ? "flutter_inappwebview_windows\\" + filenameSplit.back() : filename;
+      debugMsg = reduceFilenamePath + "(" + std::to_string(line) + "): " + debugMsg;
+    }
     if (isError) {
-      std::cerr << msg << std::endl;
+      std::cerr << debugMsg << std::endl;
     }
     else {
-      std::cout << msg << std::endl;
+      std::cout << debugMsg << std::endl;
     }
-    OutputDebugString(ansi_to_wide(msg + "\n").c_str());
+    OutputDebugString(utf8_to_wide("\n" + debugMsg + "\n").c_str());
 #endif
   }
 
-  static inline void debugLog(const char* msg, const bool& isError = false)
+  static inline void debugLog(const char* msg, const bool& isError = false, const std::string& filename = "", const int& line = 0)
   {
-    debugLog(std::string(msg), isError);
+    debugLog(std::string(msg), isError, filename, line);
   }
 
-  static inline void debugLog(const std::wstring& msg, const bool& isError = false)
+  static inline void debugLog(const std::wstring& msg, const bool& isError = false, const std::string& filename = "", const int& line = 0)
   {
-    debugLog(wide_to_ansi(msg), isError);
+    debugLog(wide_to_utf8(msg), isError, filename, line);
   }
 
-  static inline void debugLog(const bool& value, const bool& isError = false)
+  static inline void debugLog(const bool& value, const bool& isError = false, const std::string& filename = "", const int& line = 0)
   {
-    debugLog(value ? "true" : "false", isError);
+    debugLog(value ? "true" : "false", isError, filename, line);
   }
 
   template<
     typename T,
     typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type
   >
-  static inline void debugLog(const T& value, const bool& isError = false)
+  static inline void debugLog(const T& value, const bool& isError = false, const std::string& filename = "", const int& line = 0)
   {
     debugLog(std::to_string(value), isError);
   }
 
   static inline std::string getHRMessage(const HRESULT& error)
   {
-    return wide_to_ansi(_com_error(error).ErrorMessage());
+    return wide_to_utf8(_com_error(error).ErrorMessage());
   }
 
-  static inline void debugLog(const HRESULT& hr)
+  static inline void debugLog(const HRESULT& hr, const std::string& filename = "", const int& line = 0)
   {
     auto isError = hr != S_OK;
-    debugLog((isError ? "Error: " : "Message: ") + getHRMessage(hr), isError);
+    debugLog((isError ? "Error: " : "Message: ") + getHRMessage(hr), isError, filename, line);
   }
 
-  static inline bool succeededOrLog(const HRESULT& hr)
+  static inline bool succeededOrLog(const HRESULT& hr, const std::string& filename = "", const int& line = 0)
   {
     if (SUCCEEDED(hr)) {
       return true;
     }
-    debugLog(hr);
+    debugLog(hr, filename, line);
     return false;
   }
 
-  static inline bool failedAndLog(const HRESULT& hr)
+  static inline bool failedAndLog(const HRESULT& hr, const std::string& filename = "", const int& line = 0)
   {
     if (FAILED(hr)) {
-      debugLog(hr);
+      debugLog(hr, filename, line);
       return true;
     }
     return false;
   }
 
-  static inline void failedLog(const HRESULT& hr)
+  static inline void failedLog(const HRESULT& hr, const std::string& filename = "", const int& line = 0)
   {
     if (FAILED(hr)) {
-      debugLog(hr);
+      debugLog(hr, filename, line);
     }
   }
 }
 
+#ifndef NDEBUG
+#define debugLog(value) debugLog(value, false, __FILE__, __LINE__)
+#define succeededOrLog(value) succeededOrLog(value, __FILE__, __LINE__)
+#define failedAndLog(value) failedAndLog(value, __FILE__, __LINE__)
+#define failedLog(value) failedLog(value, __FILE__, __LINE__)
+#endif
+
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_LOG_UTIL_H_
\ No newline at end of file
diff --git a/flutter_inappwebview_windows/windows/utils/string.h b/flutter_inappwebview_windows/windows/utils/string.h
index 9fcf7e7d..cce03750 100644
--- a/flutter_inappwebview_windows/windows/utils/string.h
+++ b/flutter_inappwebview_windows/windows/utils/string.h
@@ -1,8 +1,10 @@
 #ifndef FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
 #define FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
 
+#include <numeric>
 #include <optional>
 #include <string>
+#include <vector>
 
 #include "strconv.h"
 
@@ -42,12 +44,12 @@ namespace flutter_inappwebview_plugin
 
   static inline bool string_equals(const std::string& s1, const std::wstring& s2)
   {
-    return string_equals(s1, wide_to_ansi(s2));
+    return string_equals(s1, wide_to_utf8(s2));
   }
 
   static inline bool string_equals(const std::wstring& s1, const std::string& s2)
   {
-    return string_equals(wide_to_ansi(s1), s2);
+    return string_equals(wide_to_utf8(s1), s2);
   }
 
   template <typename T>
@@ -107,6 +109,33 @@ namespace flutter_inappwebview_plugin
 
     return newString;
   }
+
+  template <typename T>
+  static inline std::basic_string<T> join(const std::vector<std::basic_string<T>>& vec, const std::basic_string<T>& delim)
+  {
+    return vec.empty() ? std::basic_string<T>{ "" } : /* leave early if there are no items in the list */
+      std::accumulate( /* otherwise, accumulate */
+        ++vec.begin(), vec.end(), /* the range 2nd to after-last */
+        *vec.begin(), /* and start accumulating with the first item */
+        [delim](auto& a, auto& b) { return a + delim + b; });
+  }
+
+  template <typename T>
+  static inline std::vector<std::basic_string<T>> split(const std::basic_string<T>& s, std::basic_string<T> delimiter)
+  {
+    size_t pos_start = 0, pos_end, delim_len = delimiter.length();
+    std::basic_string<T> token;
+    std::vector<std::basic_string<T>> res;
+
+    while ((pos_end = s.find(delimiter, pos_start)) != std::basic_string<T>::npos) {
+      token = s.substr(pos_start, pos_end - pos_start);
+      pos_start = pos_end + delim_len;
+      res.push_back(token);
+    }
+
+    res.push_back(s.substr(pos_start));
+    return res;
+  }
 }
 
 #endif //FLUTTER_INAPPWEBVIEW_PLUGIN_UTIL_STRING_H_
\ No newline at end of file